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This statement can be reproduced at will, but the original author charlee and original link http://tech.idv2.com/2008/02/21/unicode-intro/must be indicated during reprinting. Basic knowledge Differences between byte and character Big endian and little endian UCS-2 and UCS-4 UTF-16 and UTF-32 UTF-16 UTF-32 UTF-8 Basic knowledge Before int

permanently reserved and is not mapped to characters, so the UTF-16 encoding cleverly leverages this retained code point to encode characters in the auxiliary plane, which is explained later. Unicode is just a set of symbols, only the code points corresponding to the specified characters, and does not specify how to store, how to store there is a different encoding scheme, about the Unicode encoding scheme has two main main lines: UCS and UTF. UTF ma

I. Universal Character Set (UCS) ISO/IEC 10646-1 [ISO-10646] defines a character set of more than 8 bits, called a universal Character set (UCS), which contains most of the world's written character systems. Two more than 8 bit-byte encodings have been defined, with four 8-bit bytes encoded for each character called UCS-4, with two 8-byte encodings for each char

a character, it is an auxiliary plane character, the code point is u+1d306, and the calculation process of converting it to UTF-16 is as follows. H= Math.Floor (0x1d306-0x10000) /0x400) +0xd800 = 0xd834l = (0x1d306-0x10000) % 0x400+ 0XDC00 = 0xdf06 Therefore, the UTF-16 encoding of the character is 0xd834 DF06, which is four bytes in length.V. What encoding does JavaScript use?The JavaScript language uses the Unicode character set, but only one encoding method is supported.This co

point is u+1d306, and the calculation process of converting it to UTF-16 is as follows. H = Math.floor ((0x1d306-0x10000)/0x400) +0xd800 = 0xd834l = (0x1d306-0x10000)% 0X400+0XDC00 = 0xDF06 Therefore, the UTF-16 encoding of the character is 0xd834 DF06, which is four bytes in length.V. What encoding does JavaScript use?The JavaScript language uses the Unicode character set, but only one encoding method is supported.This code is neither UTF-16, nor UTF-8, nor UTF-32. The coding met

the memory slot (memory slot is also used to prevent the design, the opposite can not be inserted, you will be able to install the corresponding memory and slot on the gap), with two thumbs down at both ends of the memory slightly downward pressure, hear "snapped" after a sound, That means the memory is installed in place. Insert two identical memory in the same color memory slot, turn on dual channel function, improve system performance. So far, the CPU, memory installation process is compl

When assembling a new host, be sure to pay attention to the installation of various parts of the computer and matters. Here is a piece to learn how to assemble the computer to pay attention to what: First, motherboard installation in the installation process, some JS in order to save time and effort, often in the process of installing the motherboard only in the chassis fixed plate installed 4-5 socket base, and then directly installed on the moth

processing functions are different. How can this problem be solved?2 solution 2.1 command mode to solve A reasonable solution for solving the above problems is the command mode. So what is the command mode?(1) command mode definitionEncapsulate a request as an object so that you can parameterize the customer with different requests, queue requests or record request logs, and support auditable operations. (2) Application Command mode to solve the problemFirst, let's look at the actual computer s

GBK. gb18030 is based on GBK and adds major ethnic minority texts such as Tibetan, Mongolian, and Uyghur.CodePage is a ing table between text encoding and Unicode in different countries. For example, the ing table between GBK and Unicode is cp936, so cp936 is also commonly used to refer to GBK. 3. Unicode ANSI has many code pages. internal codes of different code pages cannot be normally displayed on other code pages. Due to the inconvenience of communication and transmission caused by diffe

point is U + 1D306, it is converted into the UTF-16 calculation process is as follows. Copy codeThe Code is as follows: H = Math. floor (0x1D306-0x10000)/0x400) + 0xD800 = 0xD834L = (0x1D306-0x10000) % 0x400 + 0xDC00 = 0xDF06 Therefore, the character UTF-16 encoding is 0xD834 DF06, length is four bytes. 5. What encoding does JavaScript use? JavaScript uses the Unicode Character Set, but only supports one encoding method. This encoding is neither a UTF-16 nor a UTF-8, nor a UTF-32. The above e

= Math.floor ((0x1d306-0x10000)/0x400) +0xd800 = 0xd834l = (0x1d306-0x10000)% 0X400+0XDC00 = 0xdf06 So, the UTF-16 encoding of a character is 0xd834 DF06, which is four bytes long. What kind of coding does JavaScript use? The JavaScript language takes the Unicode character set, but only one encoding method is supported. This encoding is neither UTF-16 nor UTF-8, nor is it UTF-32. The above coding methods, JavaScript are not. JavaScript uses a u